@wews I take 1/2 pill of Anastrozole daily. Apparently I've read that 1/2 pill every day has fewer side effects than 1 pill every other day. So, I just started 2 weeks ago and haven't told my oncologist yet.
When I first tried Letrozole every day and got Carpal Tunnel Syndrome and Trigger Fingers after a month, I asked my oncologist if I could cut down to every other day and he said to go ahead and try it. Because SO much Letrozole was already in my system, the reduced dosage didn't do much to lessen side effects, so I quit.
Now that I learned how sensitive I am to AI side effects, when I began Anastrozole, I began with 1/2 dose. So, it's a gentler approach to trying these AI's at half-dose instead of jumping right in. If all goes well with me with few side effects, perhaps I'll do full dose every other day. It's an experiment and even at half dose, the drug must be keeping my hormone levels low as I'm very petite.